​x
 
<!DOCTYPE html>
<?php
$cookie_name = "user";
unset($_COOKIE[$cookie_name]);
// 设置空值并将过期时间设置为过去一小时
$res = setrawcookie($cookie_name, '', time() - 3600);
?>
<html>
<body>
​
<?php
echo "Cookie 'user' 已被删除。";
?>
​
</body>
</html>